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Title
Limiting the loss of terrestrial ecosystems to safeguard nature for biodiversity and humanity
Author(s)
Simmonds, Jeremy S.;Suarez-Castro, Andres Felipe;Reside, April E.;Watson, James E.M.;Allan, James R.;Borrelli, Pasquale;Dudley, Nigel;Edwards, Stephen;Fuller, Richard A.;Game, Edward T.;Linke, Simon;Maxwell, Sean L.;Panagos, Panos;Puydarrieux, Philippe;Quétier, Fabien;Runting, Rebecca K.;Santini, Talitha;Sonter, Laura J.;Maron, Martine
Published
Preprint
Publisher
bioRxiv
Published Version DOI
https://doi.org/10.1101/2021.02.07.428694
Abstract
Humanity is on a pathway of unsustainable loss of the natural systems upon which we, and all life, rely. To date, global efforts to achieve internationally-agreed goals to reduce carbon emissions, halt biodiversity loss, and retain essential ecosystem services, have been poorly integrated. However, these different goals all rely on preserving natural ecosystems. Here, we show how to unify these goals by empirically deriving spatially-explicit, quantitative area-based targets for the retention of natural terrestrial ecosystems. We found that at least 67 million km2 of Earth’s natural terrestrial ecosystems (~79% of the area remaining) require retention – via a combination of strict protection but more prominently through sustainably managed land use regimes complemented by restoration actions – to contribute to biodiversity, climate, soil and freshwater objectives under four United Nations’ Resolutions. This equates to retaining natural ecosystems across ~50% of the total terrestrial (excluding Antarctica) surface of Earth. Our results show where retention efforts could be focussed to contribute to multiple goals simultaneously. The retention targets concept that we present explicitly recognises that such management can and should co-occur alongside and be driven by the people who live in and rely on places where natural and semi-natural ecosystems remain on Earth.
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PUB25621